GCF

Front

What does GCF stand for?

Back

Greatest Common Factor.

Front

How do you find the GCF of two numbers?

Back

List the factors of each number and identify the largest factor they have in common.

Front

What is the GCF of 12 and 16?

Back

The GCF is 4.

Front

What is the GCF of 18 and 24?

Back

The GCF is 6.

Front

Is 1 a factor of every number?

Back

Yes, 1 is a factor of every number.

Front

What is a factor?

Back

A factor is a number that divides another number without leaving a remainder.

Front

What is the GCF of 15 and 30?

Back

The GCF is 15.

Front

What is the GCF of 8 and 12?

Back

The GCF is 4.

Front

If two numbers have no common factors other than 1, what are they called?

Back

They are called coprime or relatively prime.

Front

What is the GCF of 9 and 27?

Back

The GCF is 9.